Progress with induction of HIV broadly neutralizing antibodies in the Duke Consortia for HIV/AIDS Vaccine Development

Author:

Haynes Barton F.1,Wiehe Kevin2,Alam S. Munir2,Weissman Drew3,Saunders Kevin O.4

Affiliation:

1. Duke Human Vaccine Institute, Departments of Medicine and Immunology

2. Duke Human Vaccine Institute, Department of Medicine, Duke University School of Medicine, Durham, North Carolina

3. Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania

4. Duke Human Vaccine Institute, Departments of Surgery, Immunology and Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, North Carolina, USA

Abstract

Purpose of review Design of an HIV vaccine that can induce broadly neutralizing antibodies (bnAbs) is a major goal. However, HIV bnAbs are not readily made by the immune system. Rather HIV bnAbs are disfavored by a number of virus and host factors. The purpose of the review is to discuss recent progress made in the design and use of immunogens capable of inducing HIV bnAbs in the Duke Consortia for HIV/AIDS Vaccine Development. Recent findings New immunogens capable of binding with high affinity to unmutated common ancestors (UCAs) of bnAb B cell lineages have been designed and strategies for stabilization of HIV Env in its prefusion state are being developed. Success is starting to be translated from preclinical studies of UCA-targeting immunogens in animals, to success of initiating bnAb lineages in humans. Summary Recent progress has been made in both immunogen design and in achieving bnAb B cell lineage induction in animal models and now in human clinical trials. With continued progress, a practical HIV/AIDS vaccine may be possible. However, host constraints on full bnAb maturation remain as potential roadblocks for full maturation of some types of bnAbs.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Virology,Infectious Diseases,Oncology (nursing),Oncology,Hematology,Immunology

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